| Saint-Hilaire-de-Riez to Oria | 1,065.90 mi (1,715.40 km) |
| Saint-Hilaire-de-Riez to Oristano | 707.65 mi (1,138.86 km) |
| Saint-Hilaire-de-Riez to Orta Nova | 950.30 mi (1,529.36 km) |
| Saint-Hilaire-de-Riez to Orte | 762.74 mi (1,227.50 km) |
| Saint-Hilaire-de-Riez to Ortona | 857.84 mi (1,380.57 km) |
| Saint-Hilaire-de-Riez to Orvieto | 742.12 mi (1,194.32 km) |
| Saint-Hilaire-de-Riez to Orzinuovi | 576.21 mi (927.32 km) |
| Saint-Hilaire-de-Riez to Osimo | 783.52 mi (1,260.96 km) |
| Saint-Hilaire-de-Riez to Ospitaletto | 580.44 mi (934.13 km) |
| Saint-Hilaire-de-Riez to Ostuni | 1,055.59 mi (1,698.80 km) |
| Saint-Hilaire-de-Riez to Ottaviano | 911.72 mi (1,467.27 km) |
| Saint-Hilaire-de-Riez to Ovada | 530.68 mi (854.05 km) |
| Saint-Hilaire-de-Riez to Ozieri | 691.26 mi (1,112.47 km) |
| Saint-Hilaire-de-Riez to Paceco | 952.51 mi (1,532.92 km) |
| Saint-Hilaire-de-Riez to Pachino | 1,114.18 mi (1,793.11 km) |
